# Sync

This documents the sync implementation inside mozilla-central. It assumes
a general understanding of what Sync is and how it works at a high level - you
can find [some external docs](https://mozilla-services.readthedocs.io/en/latest/sync/)
which can help with this.

```{toctree}
:maxdepth: 1

overview
engines
rust-engines
payload-evolution
external
```